Stop device foe adding



(ModL) 2 Sheets- Sheet 1.

- W. KOCH.

STOP DEVICE FOR ADDING, COUNTING, 0R REGISTERING MACHINES.

Patented May 8,1887.

X I b a 1 2 Sheets-Sheet 2.

(Model) W. KOCH.

STOP DEVICE FOR ADDING, COUNTING, OR REGISTERING MACHINES.

No. 862,219. Patented May 3, 1887.

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V UNITED STATES l/VILLIAM KOCH, OF NEW YORK, N.

PATENT OFFICE.

Y., ASSIGNOR TO THE KRUSE CHECK AND ADDING MACHINE COMPANY, OF SAMEPLACE.

SPECIFICATION forming part of Letters Patent No. 362,219, dated May 3,1887. Application filed June 29, 1885. Serial No. 179.111. (Modem To allwhom it may concern.-

Be it known that I, WILLIAM KOCH, of the city, county, and State of NewYork, have invented an Improved Stop Device for Adding, Counting, orRegistering Machines; and-I do hereby declare that the following is afull and exact description thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,making a .part of this specification.

My invention relates to adding and registeri-ng machines operating bymeans of geared numbering-wheels.

In the use of aseries of adding-wheels geared in the customary manner,so that each successive wheel in the train shall be turned a distanceequal to one unit at each complete revolution of the preceding wheel,difficulty has been experienced in obtaining accuracy and precision inthe machine when moved at a high speed, from the fact that the momentumacquired by the rapidly-rotating wheel tends to carry it beyond thepoint at which it should come to rest.

The object of my invention is to produce a simultaneous engagement ofthe stops provided for each and every wheel in the entire series at theprecise moment when the units-wheel has actuatedthe train of wheels, andthereby render the machine absolutely exact in its movements.

In the accompanying drawings, Figure 1 is a plan view of anaddingmachine fitted with my invention. Fig. 2 is a cross-section inline ac w of Fig. 1, illustrating the adding-wheels released from thestop devices. Fig. 3 is a similar section illustrating the stops inposition to engage the wheels. Fig. 4. is a side elevation of two of theadding-wheels, illustrating the position of the single tooth by whicheach complete rotation of one of the wheels is made to turn the nextforward one tooth. Fig. 5 is a plan view with an accompanying transversesection illustrating a modification of my invention. Figs. 6, 7, 8, and9 are respectively plans with accompanying sections illustrating othermodifications of my invention.

A represents the unitswheel, and B B B B &c., the adding-wheels, of anadding and registering machine,

The adding-wheels are of thecustomary form, each bearing numbers from 1to 10 on their per1pher1es,'and are constructed, as is usual,

on each side thereof. They are mounted to rotate loosely upon a shaft,D, secured in the frame E of the machine. One pinion, c, of each wheelis made to gear into a loose pinion, F, of an equal number of teeth,mounted upon a second shaft, D, (see Figs. 2, 3, and 4,) parallel withthe shaft D, and each pinion F is provided with a single tooth, a, whichprojects laterally beyond the remaining teeth to engage the teeth of thepinion c of the addingwheel next beyond that which gears into the pinionF. The single tooth a thus operates at each revolution of theadding-wheel to move the next adding-wheel forward one-tenth of arevolution. A reverse movement of each adding-wheel is prevented bymeans of springactuated pawls G G, secured at one end to a transverserod, G, in the frame to project against and engage the teeth of oneofthe pinions c c.

The units-wheel A is mounted upon a pin orspindle, I, projecting fromthe frame E parallel with the shafts D D. If the machine is designed forcounting dollars and cents, its periphery is marked with numeralsindicating an even number of cents from 0 to 100, the adding-wheelsbeing made to count the dollars by tens, hundreds, thousands, 850. Inthe drawings the wheel is represented as indicating the cents by fives.It is constructed with a hub projecting on both sides thereof, and uponthe hub, on one side of the wheel, a single radial tooth, a, (see Fig.1,) is formed to gear with the teeth of the pinion c of the firstadding-wheel, B, so as to turn it onetenth of a revolution at eachrevolution of the units-wheel.

ism whose movements are to be counted or measured by means of a pinion,K, on its hub or other customary gear. Its reverse moveeach with a'tentoothed flange or pinion, c c, v

The units-wheel A is geared to the mechanor inclined surface upon theunits-wheel or its hub, which shall operate by its revolution to throw astop between the teeth of the pinions of all of the adding-wheels, orotherwise to engage simultaneously all of said wheels at the moment thesingle tooth upon the units-whccl has produced a movement of one or moreof said adding-wheels.

L in the accompanying drawings represents a cam formed upon theperiphery of the outer hub of the units-wheel A.

M, Figs. 1, 2, and 3, is a rock shaft or bar pivoted at each end in theframe 11 parallel with the shafts D D, between the units and the addingwheels, but above the same, and which is provided with fingers or lugs NN, adapted to drop in between the teeth of the pinions c c of theadding-wheels B B B &e.

A friction-roller, P, is mounted within a slotted arm, P, projectinglaterally from the rock-shaft M over the cam-surface L of the hub, andthis roller is made to bear constantly upon said surface by means of acoiled spring, P, Fig. 1, at one end of the shaft. When thefriction-roller rests on the lesser diameter of the cam, as shown inFig. 2, the stop fingers N N are lifted clear of the pinions c 0, butare thrown into engagement to completely lock the same, when, in therotation of the unitswheel and its hub, the cam L is made to lift theroller P, as shown in Fig. 3. The proportions of the cam L and itsposition with reference to that of the single actuating-tooth a of theunits-wheel are so adjusted as that the friction-roller P will ride upupon the cam and rock the shaft M at the moment the tooth to ngages thepinion 0 of the adding-wheel B, so that so soon as the adding-wheel hasbeen moved by the tooth and the latter is free to pass therefrom theadding-wheel is locked by the engagement with its pinions of the fingerN upon the rock-shaft. The single actuatingtooth for each adding-wheelis in like manner so adjusted with reference to the cam L as that eachand every adding-wheel will be locked the moment it has been moved, anda movement of either of the wheels to carry the number thereon beyondthe position to which it has been normally carried by the movement ofits appropriate actuating-tooth is wholly prevented, as shown in Fig. 3.Before the actuating-tooth a has again come round into position foraction the cam L allows the friction-roller P to drop, and the fingers NN on the shaft are lifted, as shown in Fig. 2, to allow theadding-wheels to move.

Instead of constructingthe adding-wheels B B B", &c., of a solidcircular body with lateral toothed flanges or pinions on each side,

they may be constructed of a single widetoothed wheel, 1), upon thecenter of which a central hand, If, is fitted, the periphery of the bandbeing numbered to serve as the face of the adding-wheel. (See Figs. 2,4, 5, 850.)

Many equivalentmodifications maybe made in the manner of locking theentire series of addingwheels by means of a single movable pieceactuated by a cam on the units-wheel.

Fig. 5 illustrates such a modification in the form of a cam, L, formedupon the lateral face of the units-wheel A. A friction-roll r, bearsagainstit. This roller is mounted atthe end of an arm, P, projectingfromarod orbar, Q, fitted to slide longitudinally parallel wit-h theaxial shaft of the adding-wheels B B, and which, being moved in onedirection by the cam, is carried in the opposite direction by a spring,P. This bar is provided with fingers N N, arranged to enter between thepinions c 0 upon the adding-wheels. The longitudinal movements of thebar Q, produced by the cam Land spring P will cause the fingers N topass at the proper moment into and out of engagement with theteeth ofthe pinion 0 upon one side of each wheel, and the cam is so adjusted andproportioned as that an engagement of the pinion to lock the same iseffected at the moment the movement of the addingwheel is completed.

Fig. 6 illustrates another modification in the form of a rocking bar, S,mounted in the frame parallel with the axial shaft of the adding-wheelsB B. Upon one side this bar is provided with an arm, P, carrying africtionroller, P, to bear upon a cam, L, formed on the hub of theunits-wheel A, so that the rotation of the units-wheel shall produce, asthe roller rides upon the cam, an oscillation of the bar at eachrevolution of the wheel. From the other side of the bar, arms T Taremade to project out beyond the adding-wheels B B B, &c., and are unitedby a cross-bar, T, which, when the cam L carries up the arm P, will hebrought to bear upon the pawls G- G, which engage the pinions c c of theentire series of adding-wheels, (see Figs. 2 and 3,) and by preventingthem from lifting will cause them to look all of the adding-wheels atthcinstant the movement of any one of them, produced by their gearingwith the units-wheel, is completed.

Fig. 7 illustrates the shaft I of the unitswheel extended parallel withthe axial shaft D of the adding-wheels, so as to carry a series of cams,L L", mounted thereon against the peripheries of the toothed wheels orpinions c c of all of the adding-wheels B B, &c., at the moment themovement of either adding-wheel is completed. The periphery of the camis made tobear upon the ends of the two adjacent teeth of the pinionwith which it is brought into register, (shown in section Fig. 7,) andwill thus lock the same effectuall Fig. 8 illustrates the adding-wheelsBB B", 850., as mounted to turn loosely upon a fixed axial shaft, D,slotted longitudinally and pro vided with a longitudinal bar, U, fittedin said slot, with freedom to move out radially therefrom. Theinnerperiphery of the bore of each and every adding-wheel in the series isnotched, (seen in cross-section, Fig. 8,) so that when the bar U ismoved outward radially from its seat in the fixed shaft D it will engagesome one of these internal notches, and thus lock the wheel. This radiallocking movement of the bar U is effected at the moment any one of theaddingwheels has completed its movement by means of arms T T upon theends of a rocking shaft, S, mounted parallel with the axial shaft D. Thearms T T engage the projecting ends of the bar U. The shaft S is made torock at the proper moment to lift the bar U by means of afriction-roller, P, upon an arm, P, projecting from the opposite side ofthe shaft over a cam, L, on the hub of the units-wheel A, as hashereinbefore been described, and substantially as shown in Figs. 1, 2,3, and 6.

Fig. 9 illustrates the rocking shaft S, which 4 is actuated, asdescribed, by a cam, L, on the units-wheel A, as provided with elasticplates or arms W \V, which at the proper moment are brought to bear, bythe oscillation of the shaft,upon the periphery of each adding-wh eel,to arrest its movement by frictional contact therewith.

In the operation of my device, so soon as, in the rotation of the unitswheel, its actuatingtooth is made to engage the first adding-Wheel inthe series the cam or projection moving with the units-wheel is broughtto bear upon the rock-shaft actuating the stops fitted to engage eachadding-wheel, and by moving said shaft will cause a simultaneousengagement of said stops with every adding-wheel in the entire series atthe moment the movement of the first wheel is completed, and therebyprevent any one of said wheels from moving too far.

I claim as my invention- The combination, with the uniis-wheel and trainof adding-wheels in an adding-machine, of a single cam or irregularprojection revolving with the units-wheel, a series of movable stopplates or fingers fitted to engage each of the adding-wheels in theentire series, and a single intermediate rocking bar or shaft governingeach and every stop plate or finger, whereby the movement of the singlecam or projection synchronously with the unitswheel will produceautomatically a simultaneous engagement or disengagement of all the stopplates or fingers with the adding-wheels in the entire series,substantially in the manner and for the purpose herein set forth.

In testimony whereof I have signed my name i to this specification inthe presence of two subscribing witnesses. 1

WILLIAM KOCH.

Witnesses:

J. F. AcKER, Jr., A. B. MOORE.

